Purchased the nucleus V2 last week, installed a 4tb SSD drive and migrated ~45,000 files. installation and migration was problem free. It has performed perfectly. Roon reported about 80 files were corrupt (which they were). Some of my DSD file formats were not supported by Roon. I previously ran a 2011 mac mini core and the nucleus is much faster and connections to the iPad are quicker and smoother. I like the fact that I do not have wake the mac anymore and then wait for the iPad to find the connection. My main dac is out for service so I am using a AudioQuest Cobalt and it sounds surprisingly good. I think the nucleus sounds a bit better than the mac with the cobalt but it may be the better function that colors my perception.
I have had my Nucleus + for about a month and just finished ripping my CDs. I did about half with the nucleus + with an LG disk reader I got for this purpose. Shortly after I began I also started to use my iMac Pro with a super drive. The reason for this is that often the Nucleus software would not be able to identify tracks that the JRiver Media Center could on my Mac. Other than that, the process of ripping on the Nucleus Plus was quite good. I don’t like that I can not find a way to create filters based on subdirectories (e.g., CD-Rips) where my CDs are on the internal SSD, as suggested by the instructions. I will find a work around, perhaps with tagging.
The sound using DSD files is just stunning. The Nucleus + is connected to my Chord Hugo TT2. I have also set the system for upsampling based on some recommendations the people that sold the gear to me made. For the most part it is good. When playing back CDs it helps but many of the CDs with my combination of equipment sound very harsh. This is probably due to the fact most of the recordings are at least 30 years old. With DSD the sound is smooth and full, very nice.